The U.S. Army is putting up to $472 million behind a new push to keep its CH-47 Chinook helicopters ready for future missions. Easier upgrades Avionics sit at the center of how modern military aircraft communicate, navigate, and manage mission systems. Collins will support the Army in tackling those obsolescence issues across the Chinook fleet. Open architecture A major part of the effort involves open and reusable avionics architecture. For the Chinook fleet, the larger goal is straightforward.